Talking-motion-picture apparatus



'Dec. 13, 1927. v

C. F. BATEHOLTS v TALKING MoTIoN PICTURE APPARATUS Filed Jan. 22. 1927 Inventor: Charles FT Bateholts, by @W i His Attovneg.

Patented Dec. 13, 1927.

UNITED STATES PATENT OFFICE.

CHARLES I". BATEHOLTS, F SCHENECTADY, NEW YORK, ASSIGNOR T0 GENERAL ELEC- TRIO COMPANYLA CORPORATION 0F NEW YORK.

TALKING-MOTION-PICTURE APPARATUS.

Application led January 22, 1927. Serial No. 162,897.

My invention relates to talking motion picture apparatus by which motion pictures and accompanying sounds are simultaneously produced and particularly to that part of the apparatus -which affects the relation between the actual source of the sounds and the personsl or objects shown by the pictures as producing the sounds.

In former apparatus of this character the sounds which accompany the pictures and which are intended to give one the impres` sion as coming from the persons or objects shown in the pictures have been commonly produced by a sound producing device of some well known construction arranged at some point adjacent the screen, as for example on the ioor near the bottom Aof the screen. With the sound device so placed a person observing the pictures frequently is 2 conscious of the fact that the sounds do not come from the source of the sounds as shown by the pictures, particularly is this true when the source of the sound being illustrated happens to be on that portion of the screen which is furthest removed from the sound device.

An object of my invention therefore is the provision in apparatus of this character of improved means for overcoming this objection and for making the presentation more realist-ic. c

My invention will be better understood from the following description taken in connection with the accompanying drawing, an

its scope will be pointed out in the appended claim.

Referring to the drawing which illustrates in a single figure an embodiment of my invention, I have shown at 1 a screen of any suitable material upon which themotion pietures may be projected by apparatus not illustrated. Spaced behind the screen I have shown the sound producing` device 2 which in the present instance is illustrated by way of example as a loud speaker whose trout or sound emitting side Jfaces the rear of the screen. I have `also shown the device 2 as being enclosed by the casing 3 having an opening opposite the front of thel vloud speaker. Extending between the screen and 5@ t i e loud speaker is the tapered casing 4 which is arranged with its small end covering the opening in casing 3 and with the periphery of its outer end enclosing and spaced from the screen l. Between the edges of the screen and the periphery of the casing 4, I have shown a mask 5 forming in effect a frame for the screen and constructed of material through which the sound waves are readily transmitted. Within the outer casing 4 is the inner tapered casing 6 which has the peripheral edge of its large end arranged adjacent the periphery of the screen and has its small end converging to a point. A sound passage or channel is thereby provided between the walls of the inner and outer casings 6 and 4 respectively through which the sound waves are transmitted from the loud speaker to a region or zone surrounding the screen.- The loud speaker need not necessarily be located directly behind and at a distance from the screen but if desired may be arranged in various other positions, the` casings being suitably shaped to provide a proper sound conducting passage from the loud speaker to the region surrounding the screen. Under certain circumstances I may dispense with the casing 3, the sound emitting front of the loud speaker being merely arranged opposite the small end of the outer casing.

`What I claim as new and desire to sed cure by Letters Patent of the United States,

In talking motion picture apparatus, a screen upon which motion pictures are adapted to be projected, a device for producing accompanying sounds arranged in the rear of the screen, a tapering inner enclosure eX- tendingrearwardly Jfrom the edges of the screen, and a tapering outer enclosure spaced from the inner enclosure and associated at its smaller end with the sound producing device.

In witness whereof, I my hand this 21st day of January, 1927.

CHARLES F. BATfEHoLTs.

have Ahereunto A"set 95, 

